1 files changed, 165 insertions, 0 deletions
diff --git a/lib/rdoc/attr.rb b/lib/rdoc/attr.rb
new file mode 100644
index 0000000000..43ded8e610
--- /dev/null
+++ b/lib/rdoc/attr.rb
@@ -0,0 +1,165 @@
+require 'rdoc/code_object'
+
+##
+# An attribute created by \#attr, \#attr_reader, \#attr_writer or
+# \#attr_accessor
+
+class RDoc::Attr < RDoc::CodeObject
+
+  MARSHAL_VERSION = 0 # :nodoc:
+
+  ##
+  # Name of the attribute
+
+  attr_accessor :name
+
+  ##
+  # Is the attribute readable, writable or both?
+
+  attr_accessor :rw
+
+  ##
+  # Source file token stream
+
+  attr_accessor :text
+
+  ##
+  # public, protected, private
+
+  attr_accessor :visibility
+
+  def initialize(text, name, rw, comment)
+    super()
+    @text = text
+    @name = name
+    @rw = rw
+    @visibility = :public
+    self.comment = comment
+  end
+
+  ##
+  # Attributes are ordered by name
+
+  def <=>(other)
+    self.name <=> other.name
+  end
+
+  ##
+  # Attributes are equal when their names and rw is identical
+
+  def == other
+    self.class == other.class and
+      self.name == other.name and
+      self.rw == other.rw
+  end
+
+  ##
+  # Returns nil, for duck typing with RDoc::AnyMethod
+
+  def block_params
+  end
+
+  ##
+  # Returns nil, for duck typing with RDoc::AnyMethod
+
+  def call_seq
+  end
+
+  ##
+  # Partially bogus as Attr has no parent.  For duck typing with
+  # RDoc::AnyMethod.
+
+  def full_name
+    @full_name ||= "#{@parent ? @parent.full_name : '(unknown)'}##{name}"
+  end
+
+  ##
+  # An HTML id-friendly representation of #name
+
+  def html_name
+    @name.gsub(/[^a-z]+/, '-')
+  end
+
+  def inspect # :nodoc:
+    attr = case rw
+           when 'RW' then :attr_accessor
+           when 'R'  then :attr_reader
+           when 'W'  then :attr_writer
+           else
+               " (#{rw})"
+           end
+
+      "#<%s:0x%x %s.%s :%s>" % [
+        self.class, object_id,
+        parent_name, attr, @name,
+      ]
+  end
+
+  ##
+  # Dumps this Attr for use by ri.  See also #marshal_load
+
+  def marshal_dump
+    [ MARSHAL_VERSION,
+      @name,
+      full_name,
+      @rw,
+      @visibility,
+      parse(@comment),
+    ]
+  end
+
+  ##
+  # Loads this AnyMethod from +array+.  For a loaded AnyMethod the following
+  # methods will return cached values:
+  #
+  # * #full_name
+  # * #parent_name
+
+  def marshal_load array
+    @name       = array[1]
+    @full_name  = array[2]
+    @rw         = array[3]
+    @visibility = array[4]
+    @comment    = array[5]
+
+    @parent_name = @full_name
+  end
+
+  ##
+  # Name of our parent with special handling for un-marshaled methods
+
+  def parent_name
+    @parent_name || super
+  end
+
+  ##
+  # URL path for this attribute
+
+  def path
+    "#{@parent.path}##{@name}"
+  end
+
+  ##
+  # For duck typing with RDoc::AnyMethod
+
+  def singleton
+    false
+  end
+
+  def to_s # :nodoc:
+    "#{type} #{name}\n#{comment}"
+  end
+
+  ##
+  # Returns attr_reader, attr_writer or attr_accessor as appropriate
+
+  def type
+    case @rw
+    when 'RW' then 'attr_accessor'
+    when 'R'  then 'attr_reader'
+    when 'W'  then 'attr_writer'
+    end
+  end
+
+end
+